Primes whose consecutive digits differ by 2 or 3.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =13a(5) =31a(6) =41a(7) =47a(8) =53a(9) =79a(10) =97a(11) =131a(12) =241a(13) =257a(14) =313a(15) =353a(16) =463a(17) =479a(18) =631a(19) =641a(20) =647a(21) =757a(22) =797a(23) =853a(24) =857a(25) =863a(26) =1303a(27) =2531a(28) =2579a(29) =3631